Molded integral sewing hole button of thermosetting synthetic resinous materials



Oct. 12, 1948. s. EMSIG 2,451,077

MOLDED INTEGRAL SEW HOLE BUTTON OF THERMOSETTING SYNTHETI ESINOUS MATERIALS Filed March 1, 1948 FIG-L F|G.4.

FIGZ.

24 P 23 2/ p I513.

P 22 2o /9 P 1 0 p e \BQ %\& M m w -o' 0- 24 24a m x 23 26 P I 26a. P

Flea. FIG.6.

INVENTOR. SIDNEY EMSIG HIS A TTORNf).

Patented Oct. 12, 1948 MOLDED INTEGRAL SEWING HOLE BUTTON OF THERMOSETTING SYNTHETIC RESIN- OUS MATERIALS Sidney Emsig, Woodmere, N. Y.

Application March 1, 1948, Serial No. 12,299

4 Claims. (Clad-90) 1 This invention relates to a button construc-' tion; more particularly to buttons which are used in laundry serviced garments.

In the laundry servicing field, such as that involved in providing linen service, including laundered nurses uniforms, beauticians' uniforms, doctors jackets, the modern rigorous mechanized and chemical laundering operations place a very substantial burden on the servicing organizations. Especially burdensome is the button replacement and fabric repair adjacent the button zone, such as the anchor portion of the fabric, as well as the buttonholes.

The manufacturing operations of garments also require similar processing and mechanized equipment presenting somewhat similar problems and economic losses.

It is accordingly an object of my invention to" provide a button whose construction performs not only the desired function, but also assures economies in applying and servicing of garments in the various manufacturing processes as well as in the cleaning, laundering and maintenance thereof.

My invention is predicated upon my observation that the breakage of buttons and an increase in the wear and tear of the fabric, such as that to which the button is anchored or the buttonholes through which the buttons pass, especially where the buttons are made of materials of low flexural value, is based upon the lack of symmetry or uniformity in the button in the processthe fabric and button button construction which in its application in processing the garments and in use or service eifects substantial economies.

To attain these objects and such further ,objects as may appear herein, or be hereinafter pointed out, I make reference to the accompanying drawing forming a part hereof, in which- Figure 1 is a plan view of a coat button in accordance with my invention, shown sewn to a piece of fabric;

Figure 21s a sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a view similar to Figure 2, with pressive. plates;

Figure 4 is a plan view of. a shirt button in.

accordance with my invention, shown attached .to a piece of fabric; I

- Figure 5 is a section taken on the line 5-5 of Figure 4.

Figure 6 is a view similar to Figure 5, with the .fabric carrying the button compressed between flaring faces I and l5, having-their maximum thickness adjacent an axial 'zone defined bythe circular edges i6 and il. A webl8, axially positioned of the button, is provided with threaded ins of the garment in the various stages of attaching .the button, as well as-in the finishing of the garment, such as by sewing, pressing, laundering, which may be carried out not only once, but repeatedly. A lack of symmetry or uniform character of the button, especially with respect to those made of materials which have negligible flexural factors to such stresses, has been a deterrent to the general employment of low cost molded rigid buttons of thermo-setting, heat resistant compositions in favor of the more expensive materials of which buttons may be made by machining operations.

Accordingly, it is an object of my invention to provide buttons made by relatively low cost molding operations and of material which may take a high polish and provide chemical stability as well as heat resistance, and despite a negligible ilexural factor, be able to withstand rigorous processing operations in the making 'or servicing of garments employing the same, whereby substantial economies may be effected.

It is an object of my invention to provide a receiving apertures l9, IS. The faces 20 and 2| of the web l8 define'a thickness which forms the cavities 22, 23, respectively, merging adjacent the thickest portions l6 and II, respectively, The functional relationship of the cavities 22 and 23 to the faces defined by the edges l6 and I1 will be clarified hereafter, the button thus far described being fully symmetrical along the centrai axis as well as the transverse axis 0-0 which corresponds substant'ially'to the parting line of to the fabric, presents a n-ther substantial thickness which an ordinary recess intended to receive the threads and prevent undue wear cannot accommodate, and the cavity intended by sandwiched between comme may be referred to as an anchor zone thread tion in buttons of relatively small size and which.

embodies all of the advantages of the principal invention .despite the change in contour of r the opposed faces I4 and I5.-

tained in the cavities 22, 23, not only eliminating small fulcrum points, but a distribution of.

' the fabric and thread material is effected in the The illustration opposed cavities during pressure to resist, to the maximum, the flexural and compressive stresses involved in processing the fabric either in com pleting the same or in repeated laundering operations.

In accordance with my invention, the buttons i are made from a molding compound and are formed by heat and pressure to a hard, inflexible, infusible state by recommended practice for heat and pressure curing such materials to develop, the maximum resistance to deterioration by sunlight,

the effects of acids, alkalines or organic solvents.

A material which I have employed for its ability -to be heat resistant, and to resist the solvents encountered in dry cleaning, as well as the detergents employed in laundering, is a phenolic resin which is thermally set to its infusible condition by compression molding at a pressure of from 1000 to 5000 pounds per square inch under temperatures of from '280 to 400 F. Such material has a tensile strength of from about 5000 to 8500 pounds per square inch; a compressive strength of from 16,000 to 36,000 pounds per square inch; a flexural strength of from 8000 to 15,000 pounds per square inch; impact Izod (foot pounds per square inch) of .2 to .4; modulus of elasticity p. s. LX10 ranging from to 25.

Other classes of synthetic resinous materials in the form of filler extended molding mixtures which are molded by thermo-setting processes under pressure to an irreversible, infusible condition are contemplated by me, such as the urea (b) Uniformity in tile faces 14 and is, respectively, to rprovide symmetrically arranged nail prying rims permits the placement of the but.-

ton in the button sewing machine gripper fingers diagrammatically shown by the reference letter F in any position, to supply a uniform tension distance for the thread which is used to attach the buttons to thefabric, so that no alteration need'be made in the position of the gripper finformaldehyde alpha cellulose filled molding resins, or melamine formaldehyde alpha cellulose filled molding resins. These materials, when completely cured, are characterized by their property of taking a high polish even though they have negligible or no flexibility whatsoever. The materials of the class defined, when embodied in the conventional button, particularly for the linen service, including furnishing coats and aprons and "uniforms, still leave much to be desired.

- While chemical resistance to the detergents employed in the cleaning and laundering operations varied in accordance with the known chemical properties of the various synthetic resins, tending to increase the cost with a selection of the more chemically resistant resins, the minor difference in strength did not justify the larger cost since all of the buttons made from these thermo-setting resinous products exhibited suiliciently pronounced shortcomings by reason of mechanical failure to offset to a large, measure the attempted savings in the use ofmaterials for the buttons.

By my invention of making the button symmetrical with regard to the rear face and the front face along the axis 0, 0', as well as axially of the button, the following distinct advantages ensue:

(a) By making the cavity 23 adjacent the anchor zone symmetrical with the cavity 22 on the face, pressure by the plates M, M which may be the plates of the mangle, is applied uniformly to the oppositely disposed points P, P, P', P, with immaterial or no fiexural stresses.

The threads and knot and/or fabric are regers or the tension of the thread. This assures no variation in the fabric in the button sewing operation by the machine, in addition to minimizing the introduction of flexural components in the submission 'of the garment to the mechani m employed. V s a (c) Feed of the button to the gripper fingers of the button sewing machine is facilitated as no selection of faces need be made. 7

(d) Symmetry in accordance with the features outlined makes commercially economically possible the utilization of the more expensive and tougher thermo-setting synthetic resinous materials which may be set by heat andpressure to the fully cured condition, where the surfaces may take a high polish, despite a negligible flexural factor.

Thus, by the provision of symmetrically faced anchor zone thread compression cavities and ymmetrically positioned finger nail prying rims, I make acceptable the economical utilization of thermo-setting resinous materials which have. heretofore not had considerable commercial disl placement of the expensive machined buttons.

It is to be observed that where I have made reference to anchor zone compression cavities, the depth and extensiveness in contour thereof are not to be confused with the depth of recess normally allowed for strands of thread to, prevent undue wear or which may house thethread due to relative flexibility of the web against the thread apertures.

Thus, by the provision of symmetrical faces,

each of which includes a compression cavity adjacent the .anchoringapertures, and more specifically symmetrically graduating to a finger nail prying rim also preferably of symmetrical con- 'tour, molded buttons of 'thermo-setting resinous materials having negligible or no flexibllity may be employed, retaining all the desirable heat and chemical resistant properties, to permit the garments to which these-buttons are applied to go through the laundering or cleaning opera tions without warping or distorting or dulllng the Having thus described my invention and illustrated its use, what I claim as new anddesire,

to secure by Letters Patent is:

1. A molded integral sewing hole button made of a moulding mixture consisting of thermo-setting synthetic resinous material comprising symzone thread compression cavities.

2. A molded integral sewing hole button made of a moulding mixture consisting of thermo-setting synthetic resinous material comprising symmetrically positioned anchor zone compression cavities, and a narrow finger nail prying rim symmetrical to the opposed faces, merging into abruptly flaring faces having maximum thickness adjacent said cavities.

3. A molded integral sewing hole button having symmetrically positioned anchor zone compression cavities about an axially positioned symmetrical web, the faces of which are symmetrical with regard to the finger nail prying rim.

4. A molded integral sewing hole button made of a molding mixture comprising thermo-setting synthetic resinous materials, set to the heat irreversible and infusible condition to have negligibie fiexural factors, a central web, having thread receiving apertures, anchor zone thread compression cavitiesv to each side of the web, leaving thread engaging web faces equidistantly positioned to the opposed button face whereby the button may be positioned in the gripper fingers of a button sewing machine without selection of the face and without adjustment of the Number Name Date 135,375 Smith Jan. 28, 1873 1,258,942 Piper Mar. 12, 1918 1,270,467 vogelsang June 25, 1918 1,322,963 Shantz Nov. 25, 1919 15 1,511,101 Belsky Oct; 7, 1924 1,619,541 Rehor Mar. 1, 1927 1,919,697 Groff July 25, 1933 FOREIGN PATENTS Number Country Date 560,297 Great Britain Mar. 31, 1944 thread tensioning mean machine.

of the button sewing SIDNEY EMSIG.

REFERENCES crrEn UNITED STATES PATENTS 

